Drugs are chemicals. Different drugs, because of their chemical structures, can affect the body in different ways. In fact, some drugs can even change a person's body and brain in ways that last long after the person has stopped taking drugs, maybe even permanently.
USED OIL is defined as any oil that has been refined from crude oil, or any synthetic oil, that. has been used and as a result, is contaminated by physical or chemical impurities. If you do, use the information in this publication to help make the best choices in managing them.
For used vegetable oil, see Vegetable oil used as fuel. Waste oil is defined as any petroleum-based or synthetic oil that, through contamination,actually use or has become unsuitable for its original purpose due to the presence of impurities or loss of original properties. 1 Differentiating between waste oil and used oil.